Hi Miguel2930,
I saw your post about fixing code P0181 on your Galant by moving the OEM fuel temperature sensor onto the new pump. I’m dealing with the same issue on my 2003 Mitsubishi Galant after installing a Delphi FG1223‑11B1 pump.
In the attached photo of my original Mitsubishi pump, I labeled a small silver cylinder with a pointed tip and a yellow wire as “#2”. On my new Delphi pump, there is a similar part with a yellow wire that I labeled “#7”. Could you please confirm if #2 on the OEM pump is the fuel temperature sensor you moved, and if that corresponds to #7 on the Delphi unit?
I also labeled another part as “#5” on the OEM assembly. Do you remember if you had to transfer that piece as well, or was it only the sensor itself and its wiring that needed to be swapped?
Any confirmation or tips you can share would really help. Thanks a lot for your original post and for any guidance you can give.
See link to pic here:
https://postimg.cc/gallery/9T7cfx3
that corresponds to #7 on the Delphi unit?
yes, but I don't understand why you would swap them?
“#5” on the OEM assembly. Do you remember if you had to transfer that piece as well
#5 is the the resistance card. (basically just a variable resistor that tells the computer the fuel level in the tank). Don't touch it . It's calibrated to the float arm.
You are responding to a five-year-old post and are unlikely to receive a response from its author. For future reference, please post your own topic about your car problem, giving all relevant details, rather than reviving an old post. Thank you. (Your inquiry has been split off into a new topic.)
fixing code P0181
you didn't say if you have the V6 or L4 engine, but it could be the same.
Here is the troubleshooting for P0181
Can anyone confirm the solution to P0181 is to just transfer the silver bullet looking thing (Fuel Temperature Sensor labeled #2 in the pics) with yellow line attached to it on the bottom of the Mitsubishi pump to the new pump? I have pics below of the Mitsubishi pump and the new after market Delphi FG1223‑11B1 pump.
https://postimg.cc/gallery/9T7cfx3
I notice on the male harness on the old pump if i take a multimeter and set to 2k Ohms i get reading of 1.726 , but i do the same with the new pump i get .840 at ROOM TEMPERATURE 70F. The Standard value expected is : 0.5 - 12.0 kΩ but .840 is at ROOM TEMPERATURE so when it is ice cold outside i will dip below 0.5 and trip P0181.
https://mitsubishitechinfo.com/data/GS41/2009/13/HTML/M113155390109900USA.htm
@2002galant keep all your fuel pump posts together please